If a metallic wire of cross-sectional area 4.0 × 10^?6 m2 carries a current of 7.0 A and has a mobile charge density of 4.24 × 10^28 carriers/m3, what is the average drift velocity of the mobile charge carriers? (charge value = 1.6 × 10^?19 C)

a. 1.8E+3 m/s
b. 1.7E+3 m/s
c. 4.1E–4 m/s
d. 2.6E–4 m/s
e. 7.0E–6 m/s


d

Physics & Space Science

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